WO2010128692A1 - Appareil chauffant - Google Patents

Appareil chauffant Download PDF

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Publication number
WO2010128692A1
WO2010128692A1 PCT/KR2009/002355 KR2009002355W WO2010128692A1 WO 2010128692 A1 WO2010128692 A1 WO 2010128692A1 KR 2009002355 W KR2009002355 W KR 2009002355W WO 2010128692 A1 WO2010128692 A1 WO 2010128692A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat transfer
transfer part
heating
carbon nanotube
chamber
Prior art date
Application number
PCT/KR2009/002355
Other languages
English (en)
Korean (ko)
Inventor
이상헌
최송
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to US12/992,912 priority Critical patent/US8699866B2/en
Priority to CN2009801196859A priority patent/CN102084715B/zh
Priority to EP09844361.7A priority patent/EP2288229B1/fr
Publication of WO2010128692A1 publication Critical patent/WO2010128692A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/121—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
    • H05B3/12—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
    • H05B3/14—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
    • H05B3/145—Carbon only, e.g. carbon black, graphite
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H2250/00—Electrical heat generating means
    • F24H2250/04—Positive or negative temperature coefficients, e.g. PTC, NTC
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
    • H05B2214/04—Heating means manufactured by using nanotechnology

Definitions

  • the present invention relates to a heating apparatus, and more particularly, to a heating apparatus for heating a fluid.
  • the heating apparatus heats a fluid using various heaters.
  • a sheath heater or a PTC heater Pulsitive Temperature Coefficient Heater
  • a sheath heater and a PTC heater have a disadvantage in that the thermal efficiency is relatively low and a lot of restrictions are applied in shape design.
  • An object of the present invention is to provide a heating apparatus capable of heating a fluid more efficiently.
  • Another object of the present invention is to provide a heating apparatus capable of designing more various heaters.
  • the heating chamber is formed a flow path for the fluid flow; A heat transfer part transferring heat to the fluid flowing through the flow path; And a plurality of carbon nanotube heating elements that receive power and generate heat transferred to the fluid through the heat transfer unit. And a total area of contact between the carbon nanotube heating element and the heat transfer part is 50% or more of the contact area between the heat transfer part and the fluid.
  • the heating chamber is formed a flow path for the fluid flow;
  • a heat transfer part having one surface in contact with the fluid flowing through the flow path;
  • Two electrodes disposed on the other surface of the heat transfer part and connected to a power source;
  • a plurality of carbon nanotube heating elements disposed on the other surface of the heat transfer part so as to be spaced apart from each other so as to be connected to the electrodes, respectively, and generating heat by a power applied through the electrode;
  • an insulating member for insulating the electrode and the carbon nanotube heating element is an insulating member for insulating the electrode and the carbon nanotube heating element.
  • a total area of contact between the carbon nanotube heating element and the heat transfer part is 50% or more of the contact area between the heat transfer part and the fluid.
  • FIG. 1 is a perspective view showing a first embodiment of a heating apparatus according to the present invention.
  • Figure 2 is an exploded perspective view showing a first embodiment of the present invention.
  • 3 is a graph showing the thermal efficiency according to the type of heater.
  • FIG. 4 is a longitudinal sectional view showing main parts of a second embodiment of a heating apparatus according to the present invention.
  • Figure 5 is a longitudinal sectional view showing the main part of a third embodiment of a heating apparatus according to the present invention.
  • FIG. 1 is a perspective view showing a first embodiment of a heating apparatus according to the present invention
  • Figure 2 is an exploded perspective view showing a first embodiment of the present invention.
  • the heating device 100 includes a heating chamber 110, a plurality of heat generating parts, and a heat transfer part 120.
  • the heating device 100, the heating chamber 110, the heat generating portion and the heat transfer portion 120 is configured in the form of one unit.
  • a flow path P through which a fluid flows is provided inside the heating chamber 110.
  • the heat generating part generates heat to heat the fluid flowing through the flow path P, and the heat transfer part 120 transfers heat of the heat generating part to the fluid.
  • the heating chamber 110 includes first to third heating chambers 110, 110 'and 110 ".
  • the first heating chamber 110 Receives the fluid by the drawing tube Ti, and the first and second heating chambers 110 and 110 'are connected by the first connection tube Tc1.
  • the heating chamber 110 includes a chamber body 111, a chamber cover 116, and a plurality of sealing members 119.
  • the chamber body 111 and the chamber cover 116 may be formed of a heat resistant synthetic resin material.
  • a heat insulating material for insulating the fluid flowing through the flow path (P) may be additionally provided.
  • the chamber body 111 is formed in the shape of a polyhedron having approximately one surface opened. In addition, a predetermined space is formed inside the chamber body 111 to form the flow path P.
  • a plurality of compartment ribs 112 are provided in the chamber body 111.
  • the partition rib 112 partitions an inner space of the chamber body 111 so that the flow path P is formed in a sand shape as a whole. More specifically, the partition rib 112 is formed long in the inner short side direction of the chamber body 111 inside the chamber body 111. At this time, one end of the compartment rib 112 is connected to one end of the long side direction of the chamber body 111, the other end of the compartment rib 112 is spaced apart from the other end of the long side direction of the chamber body 111.
  • the flow path P formed in a sand shape by the partition rib 112 includes a plurality of straight sections (P1) and connection sections (P2).
  • the straight section P1 is formed long in the short side direction of the chamber body 111, and the connection section P2 has one end portion of the two straight sections P1 adjacent to each other in the chamber body 111. Connect each other in the long side direction.
  • the two compartment ribs 112 are formed to have a relatively wider width than the other compartment ribs 112.
  • the compartment rib 112 having a relatively wide width among the compartment ribs 112 is referred to as a fixed rib 113.
  • the chamber body 111 is provided with two communication holes (not shown) which communicate with both ends of the flow path P, respectively.
  • the communication hole is connected to the drawing tube Ti which receives the fluid from the outside or the drawing tube To which delivers the fluid heated to the outside, or the first or second connection tube Tc1 and Tc2. Connected.
  • first and second fastening holes 114 and 115 are formed on the edge surface of the chamber body 111 and the fixed ribs 113, respectively.
  • the first fastening hole 114 is for fixing the chamber cover 116
  • the second fastening hole 115 is for fixing the heat transfer part 120.
  • the chamber cover 116 is formed in a size and shape that can shield the open one surface of the chamber body 111.
  • the chamber cover 116 is fastened by a fastener (not shown) in a state in which one edge of the chamber is in close contact with the edge of the chamber body 111.
  • the chamber cover 116 is formed with a first through hole 117.
  • the first through hole 117 is where the fastener fastened to the first fastening hole 114 passes.
  • the sealing member 119 serves to prevent the leakage of the fluid flowing through the flow path (P).
  • the sealing member 119 is between the chamber body 111 and the chamber cover 116, more specifically, between the rim surface of the chamber body 111 in close contact with each other and the rim of one surface of the chamber cover 116 Is located in.
  • the heat transfer part 120 is located inside the heating chamber 110, that is, between the chamber body 111 and the chamber cover 116.
  • the heat transfer part 120 serves to transfer the heat of the heat generating part to the fluid flowing through the flow path (P).
  • the heat transfer part 120 forms the chamber body 111 and the flow path (P). Therefore, the fluid flowing through the flow path P comes into contact with one surface of the heat transfer part 120.
  • the heat transfer part 120 is formed of a material having a predetermined heat conductivity, and the heat transfer part 120 is formed to have a size and a shape capable of shielding at least the internal space of the chamber body 111. . Therefore, in the present embodiment, the heat transfer part 120 is formed in a rectangular metal plate shape.
  • a plurality of second through holes 121 are formed in the heat transfer part 120.
  • the second through hole 121 is a place where a fastener (not shown) fastened to the second fastening hole 115 passes through to fix the heat transfer part 120.
  • the heat generating part is provided on the other surface of the heat transfer part 120 corresponding to the opposite side of the one surface of the heat transfer part 120 in contact with the fluid flowing through the flow path (P).
  • the heat generating unit includes two electrodes 131, a plurality of carbon nanotube heating elements 133, and an insulating member 135.
  • the electrodes 131 are disposed to be spaced apart from each other on the other surface of the heat transfer part 120.
  • the electrodes 131 are formed long in the long side direction of the heat transfer part 120 and spaced apart from each other in the short side direction of the heat transfer part 120.
  • the carbon nanotube heating element 133 (hereinafter referred to as 'CNT heating element') means a material formed of carbon nanotubes in which hexagons made of six carbons are connected to each other to form a tubular shape. do.
  • the CNT heating elements 133 are formed long in the short side direction of the heat transfer part 120 and spaced apart from each other in the width direction of the heat transfer part 120. At this time, the CNT heating element 133 is disposed in the entire region of the heat transfer part 120 in contact with the fluid flowing through the flow path P, except for the region corresponding to the fixed rib 113.
  • the plurality of CNT heating elements 133 is configured to allow the rest of the CNT heating elements 133 to operate normally even when any one or more of the CNT heating elements 133 are disconnected. Both ends of the CNT heating element 133 are connected to the electrode 131, respectively. At this time, the distance between the adjacent CNT heating elements 133 is determined to be less than or equal to the width of the CNT heating element 133 in the short side direction of the heat transfer part 120. In addition, the sum of the areas where the plurality of CNT heating elements 133 contact the heat transfer part 120 is at least 50% of the area where the heat flowing part 120 and the fluid flowing through the flow path P contact. Is determined. This is for maximum heating of the fluid flowing through the flow path P in the range of preventing the short circuit of the CNT heating element 133.
  • the insulating member 135 serves to insulate the electrode 131 and the CNT heating element 133.
  • the insulating member 135 may be entirely coated or coated on the other surface of the heat transfer part 120 on which the electrode 131 and the CNT heating element 133 are disposed.
  • the heating device 100 includes three bimetals 140 to prevent overheating of the CNT heating element 133.
  • the bimetal 140 cuts off power applied to the CNT heating element 133.
  • the bimetal 140 is fixed to the mounting bracket 150, the mounting bracket 150 is fixed to the chamber body 111 together with the heat transfer part 120.
  • the installation bracket 150 is provided with a plurality of third through holes 151. The fastener penetrating the third through hole 151 and the second through hole 121 is fastened to the second fastening hole 115.
  • the bimetal 140 substantially senses the temperature inside the heating chamber 110. However, the bimetal 140 may directly detect the temperature of the CNT heating element 133.
  • the electrode 131 may be connected to a single-phase or three-phase input power source according to the output of the CNT heating element 133.
  • the single phase input power may be connected, and when the output of the CNT heating element 133 is higher, the three phase input power may be connected.
  • 3 is a graph showing the thermal efficiency according to the type of heater.
  • the fluid is transferred to the inside of the heating chamber 110, that is, the flow path P, through the drawing tube Ti.
  • the fluid delivered to the flow path P flows through the flow path P and is transferred to the outside of the heating chamber 110 through the drawing tube To.
  • the heating chamber 110 is composed of a plurality, the flow path (P) of the plurality of the heating chamber 110 through the connection tube (Tc1) (Tc2).
  • the CNT heating element 133 When the power is applied, the CNT heating element 133 generates heat. The heat of the CNT heating element 133 is transferred to the fluid flowing through the flow path P through the heat transfer part 120. That is, the fluid flowing through the flow path P is heated by the CNT heating element 133.
  • the CNT heating element 133 is configured to heat the fluid flowing through the flow path (P) to the maximum in a range capable of preventing a short circuit therebetween. Therefore, the CNT heating element 133 can be used to heat the fluid flowing through the flow path P more stably and efficiently.
  • the CNT heating element 133 when the CNT heating element 133 is overheated, the power applied to the CNT heating element 133 is cut off by the bimetal 140. Therefore, it is possible to prevent a problem due to overheating of the CNT heating element 133, for example, overheating of the fluid flowing through the flow path P or damage to the heat transfer part 120 or the heating chamber 110.
  • the thermal efficiency of the CNT heating element 133 is relatively higher than that of a PTC heater (Positive Temperature Coefficient) and a sieve heater which are used for heating the fluid.
  • the CNT heating element 133 exhibits a thermal efficiency of about 95%, but the PTC heater exhibits a thermal efficiency of about 55%, and the sheath heater exhibits a thermal efficiency of 65%. Indicates.
  • the CNT heating element 133 can be changed in various shapes as compared to the sheath heater.
  • the CNT heating element 133 is easier to secure rigidity than the PTC heater. Therefore, it can be said that the CNT heating element 133 has an excellent advantage in thermal efficiency and the like, compared to conventional general PTC heaters and sheath heaters.
  • the bimetal is composed of three, but is not necessarily limited thereto. That is, the number of bimetals may be determined differently according to the size of the heating chamber.
  • the heating chambers are composed of three and spaced apart from each other in the short side direction, but the number and arrangement directions of the heating chambers are not limited thereto.
  • FIGS. 4 is a longitudinal sectional view showing main parts of a second embodiment of a heating apparatus according to the present invention.
  • the same components as those of the first embodiment of the present invention described above among the components of the present embodiment will be omitted by the reference numerals of FIGS. 1 and 2.
  • the heat transfer part 120 includes a plurality of reinforcement forming parts 123.
  • the reinforcement forming part 123 is formed by forming a portion of the heat transfer part 120 to prevent thermal deformation of the heat transfer part 120.
  • the reinforcing forming part 123 is formed by forming a part of the heat transfer part 120 toward the opposite side of the flow path P, that is, the chamber cover 116 instead of the chamber body 111. Therefore, the interference of the fluid flowing through the flow path P is minimized by the reinforcing forming part 123 and the contact area with the fluid flowing through the flow path P can be relatively increased.
  • Fig. 5 is a longitudinal sectional view showing the main part of a second embodiment of a heating apparatus according to the present invention.
  • the same components as those of the first embodiment of the present invention described above among the components of the present embodiment will be omitted by the reference numerals of FIGS. 1 and 2.
  • a plurality of reinforcing ribs 118 are provided on an inner surface of the chamber cover 116.
  • the reinforcing rib 118 serves to prevent thermal deformation of the heat transfer part 120.
  • the reinforcing rib 118 extends from the inner surface of the chamber cover 116 and its front end is in close contact with the other surface of the heat transfer part 120.
  • the reinforcing rib 118 is preferably formed at a position corresponding to any one of the compartment ribs 112. Therefore, the heat transfer part 120 is pressed by the partition rib 112 and the reinforcing rib 118 corresponding to each other, it is possible to prevent the heat deformation of the heat transfer part 120 more efficiently.
  • the fluid is heated by the carbon nanotube heating element. Therefore, the fluid can be heated by the carbon nanotube heating element more efficiently.
  • a heating chamber and a carbon nanotube heating element in which a flow path through which a fluid flows are formed are constituted by one unit. Therefore, the configuration of the heating device becomes simpler, and the installation of the heating device becomes easier.
  • the sum of the contact areas of the heat transfer parts in which the plurality of carbon nanotube heating elements contact the fluid is determined to be 50% or more of the contact area of the heat transfer parts with the fluid.
  • the interval between the carbon nanotube heating elements is determined to be equal to or less than the width of the carbon nanotube heating elements. Therefore, the carbon nanotube heating element can heat the fluid to the maximum in a range capable of preventing thermal deformation of the heat transfer part.
  • the flow path through which the fluid flows is entirely formed in a sand shape, and the carbon nanotube heating element is disposed in a direction parallel to the direction in which the fluid flows through the flow path. Therefore, the heating of the fluid flowing through the flow path by the carbon nanotube heating element is made more efficient.
  • the power is selectively applied to the carbon nanotube heating element by bimetal according to whether the carbon nanotube heating element is overheated. Therefore, the fluid can be heated more safely.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)

Abstract

La présente invention concerne un appareil chauffant. Selon la présente invention, un dispositif de chauffage à nanotubes de carbone servant à chauffer le fluide traversant la conduite intérieure d'une chambre chauffante est disposé au niveau d'une unité de transmission de chaleur. La surface de contact entre le dispositif de chauffage à nanotubes de carbone et l'unité de transmission de chaleur représente 50 % ou plus de la surface de contact entre l'unité de transmission de chaleur et le fluide. En conséquence, la présente invention a pour avantage de chauffer le fluide plus efficacement.
PCT/KR2009/002355 2009-05-04 2009-05-04 Appareil chauffant WO2010128692A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US12/992,912 US8699866B2 (en) 2009-05-04 2009-05-04 Heating apparatus
CN2009801196859A CN102084715B (zh) 2009-05-04 2009-05-04 加热装置
EP09844361.7A EP2288229B1 (fr) 2009-05-04 2009-05-04 Appareil chauffant

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090038943A KR101573539B1 (ko) 2009-05-04 2009-05-04 가열장치
KR10-2009-0038943 2009-05-04

Publications (1)

Publication Number Publication Date
WO2010128692A1 true WO2010128692A1 (fr) 2010-11-11

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ID=43050186

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2009/002355 WO2010128692A1 (fr) 2009-05-04 2009-05-04 Appareil chauffant

Country Status (5)

Country Link
US (1) US8699866B2 (fr)
EP (1) EP2288229B1 (fr)
KR (1) KR101573539B1 (fr)
CN (1) CN102084715B (fr)
WO (1) WO2010128692A1 (fr)

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CN103562650B (zh) * 2011-05-27 2018-12-28 豪威株式会社 瞬时加热设备
KR101222738B1 (ko) * 2011-07-21 2013-01-16 엘지전자 주식회사 전기 오븐
CN102548062A (zh) * 2012-01-09 2012-07-04 罗仕波 一种多面体厚膜加热装置
KR20140105640A (ko) * 2013-02-22 2014-09-02 (주)엘지하우시스 복사열을 이용한 자동차용 면상 발열체
KR102101621B1 (ko) * 2018-04-12 2020-04-20 우리산업 주식회사 유체 가열용 히터 조립체
KR102081587B1 (ko) * 2019-06-26 2020-02-26 주식회사 나들 영역별로 온도 제어가 가능한 발열 블라인드
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CN113481055B (zh) * 2021-07-01 2024-04-05 安徽佳源油脂有限公司 一种基于电热管的油脂块预融破碎装置
CN114209909B (zh) * 2021-12-17 2024-03-19 中国人民解放军陆军军医大学第二附属医院 一种腹膜透析机的加热装置

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CN107003045A (zh) * 2015-11-05 2017-08-01 Lg 电子株式会社 蒸发器和具有该蒸发器的冰箱
CN107003045B (zh) * 2015-11-05 2020-05-22 Lg 电子株式会社 蒸发器和具有该蒸发器的冰箱
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Also Published As

Publication number Publication date
CN102084715B (zh) 2013-09-11
CN102084715A (zh) 2011-06-01
EP2288229A1 (fr) 2011-02-23
EP2288229A4 (fr) 2016-07-13
KR20100119987A (ko) 2010-11-12
KR101573539B1 (ko) 2015-12-01
US8699866B2 (en) 2014-04-15
EP2288229B1 (fr) 2018-02-14
US20110081139A1 (en) 2011-04-07

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